GeForce RTX 3080 vs Radeon RX 5500 XT

Intro

Compare those specs to the Radeon RX 5500 XT, which makes use of a 7 nm design. AMD has clocked the core speed at 1717 MHz. The GDDR6 memory works at a frequency of 1750 MHz on this model. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
GeForce RTX 3080		320 Watts
	Difference: 190 Watts (146%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3080 should in theory be quite a bit better than the Radeon RX 5500 XT in general. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon RX 5500 XT		229376 MB/sec
	Difference: 549171 (239%)

Texel Rate

The GeForce RTX 3080 will be a lot (more or less 159%) better at AF than the Radeon RX 5500 XT. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Radeon RX 5500 XT		151096 Mtexels/sec
	Difference: 240584 (159%)

Pixel Rate

The GeForce RTX 3080 should be a lot (approximately 152%) more effective at full screen anti-aliasing than the Radeon RX 5500 XT, and will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Radeon RX 5500 XT		54944 Mpixels/sec
	Difference: 83296 (152%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.